CN113565742A - Magnetic spring piezoelectric stack resonance pump - Google Patents
Magnetic spring piezoelectric stack resonance pump Download PDFInfo
- Publication number
- CN113565742A CN113565742A CN202011416835.7A CN202011416835A CN113565742A CN 113565742 A CN113565742 A CN 113565742A CN 202011416835 A CN202011416835 A CN 202011416835A CN 113565742 A CN113565742 A CN 113565742A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump body
- stack
- valve
- piezoelectric stack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 12
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 12
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010974 bronze Substances 0.000 claims abstract description 12
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000012377 drug delivery Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A magnetic spring piezoelectric stack resonance pump comprises a pump body, a piezoelectric stack, a pump cover, a magnet, a spring, a vibration transmission rod, a beryllium bronze film and a wheel type valve, wherein an inlet and an outlet are formed in the bottom end of the pump body; the invention has the characteristic of high output flow and has wide application prospect in the field of drug delivery.
Description
Technical Field
The invention belongs to fluid machinery, and particularly relates to a magnetic spring piezoelectric stack resonance pump.
Background
The wheel type valve is used as a common passive valve, the material of the wheel type valve is usually metal, great impact force is needed for opening the valve, the vibration amplitude of the piezoelectric vibrator is small, and the pump flow is limited.
Disclosure of Invention
The invention provides a piezoelectric resonance pump which is large in pump flow, large in vibration amplitude and convenient to assemble.
The invention discloses a magnetic spring piezoelectric stack resonance pump, which comprises a pump body, a piezoelectric stack, a pump cover, a magnet, a spring, a vibration transmission rod, a beryllium bronze film and a wheel type valve.
The bottom end of the pump body is provided with an inlet and an outlet, the bottom of the pump cavity of the pump body is provided with a valve seat, and the end part of the pump body is provided with a stacking fixing frame and a stacking groove.
The pump cover is provided with a rod hole, a spring clamping groove and a pump cover clamping groove, and the wheel type valve (8) is composed of a fixing ring (8-1), a valve arm (8-2) and a valve plate (8-3).
The beryllium bronze film is arranged on the upper portion of the pump body, the pump body and the pump cover are in adhesive fit to fix the beryllium bronze film, the pump cover and the pump body are assembled, and the piezoelectric pump is assembled.
Preferably, the valve seat is in a stepped shaft shape and is provided with a valve arm port.
Preferably, the magnets are respectively arranged on the end face of the stack and the end face of the vibration transmission rod, and the opposite faces of the magnets have the same polarity.
Preferably, the diameter of the vibration-transmitting rod (6) is smaller than that of the rod hole.
The invention has the beneficial effects that:
1. the wheel type valve is used as a one-way valve and is made of silica gel materials, the opening pressure of the valve is small, and the energy loss to liquid is small.
2. The magnet, the spring and the vibration transmission rod form a resonance system, so that the amplitude of the beryllium bronze film is improved, and the pump flow is increased.
3. The valve is arranged on the valve seat in a buckling mode, and the stopping performance is good.
Drawings
Fig. 1 is an exploded view of the device.
Fig. 2 is a schematic diagram of the pump structure.
Fig. 3 is a diagram showing a pump body structure.
Fig. 4 is a pump cover structure view.
Fig. 5 is a view showing the structure of the wheel valve.
Detailed Description
For a further understanding of the structure, features and objects of the present invention, reference will now be made in detail to the accompanying preferred embodiments, which are provided for the purpose of illustrating the invention and are not intended to limit the same.
The specific embodiments of the invention are as follows:
as shown in fig. 1 to 5, the specific structure includes a pump body 1, a piezoelectric stack 2, a pump cover 3, a magnet 4, a spring 5, a vibration transmission rod 6, a beryllium bronze film 7, and a wheel valve 8.
The bottom end of the pump body 1 is provided with an inlet 9 and an outlet 10, the bottom of a pump cavity 1-1 of the pump body 1 is provided with a valve seat 11, and the end part of the pump body 1 is provided with a stack fixing frame 1-2 and a stack groove 1-3.
The pump cover 3 is provided with a rod hole 3-1, a spring clamping groove 3-2 and a pump cover clamping groove 3-3.
The wheel type valve 8 consists of a fixed ring 8-1, a valve arm 8-2 and a valve plate 8-3.
The beryllium bronze film is arranged on the upper portion of the pump body, the pump body and the pump cover are in adhesive fit to fix the beryllium bronze film, the pump cover and the pump body are assembled, and the piezoelectric pump is assembled.
The valve seat 11 is in a stepped shaft shape and is provided with a valve arm port 11-1.
The magnets 4 are respectively arranged on the end face of the stack and the end face of the vibration transmission rod, and the polarities of the opposite faces of the magnets are the same.
The diameter of the vibration transmission rod (6) is smaller than that of the rod hole.
The working process of the patent of the invention comprises a first working process and a second working process:
the first working process comprises the following steps: the piezoelectric stack 2 extends and deforms towards the pump cover 3 under the stimulation of a forward direct-current signal, the vibration transmission rod 6 is pushed to move downwards while the spring 5 is compressed, the beryllium bronze film 7 is further pushed, the volume of the pump cavity is reduced, the pressure is increased, the pressure of the pump cavity 1-1 is larger than the external pressure, the wheel valve 8 at the outlet 10 is opened, and liquid is discharged out of the pump cavity 1-1 under the action of the pressure.
The second working process: under the stimulation of no electric signal, the piezoelectric stack 2 does not generate bending deformation, the spring returns, the volume of the pump cavity 1-1 is recovered, the pressure is reduced, the pressure of the pump cavity is lower than the external pressure, the wheel type valve 8 at the inlet 9 is opened, and liquid enters the pump cavity. By these two working processes, suction and discharge of the liquid are achieved.
The principles and embodiments of this patent are explained in detail herein, and the above examples are provided only to aid in understanding the method and the core concepts of this patent. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expression, and it will be apparent to those skilled in the art that several modifications, decorations or changes may be made without departing from the principle of the present invention, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope of the present invention as defined by the claims, should not be construed as limitations on the scope of the invention.
Claims (4)
1. A magnetic spring piezoelectric stack resonance pump comprises a pump body (1), a piezoelectric stack (2), a pump cover (3), a magnet (4), a spring (5), a vibration transmission rod (6), a beryllium bronze film (7) and a wheel type valve (8), wherein an inlet (9) and an outlet (10) are arranged at the bottom end of the pump body (1), a valve seat (11) is arranged at the bottom of a pump cavity (1-1) of the pump body (1), a stack fixing frame (1-2) and a stack groove (1-3) are arranged at the end part of the pump body (1), the pump cover (3) is provided with a rod hole (3-1), a spring clamping groove (3-2) and a pump cover clamping groove (3-3), the wheel type valve (8) is composed of a fixing ring (8-1), a valve arm (8-2) and a valve block (8-3), the beryllium bronze film is arranged at the upper part of the pump body, the pump body and the pump cover are in adhesive fit to fix the beryllium bronze film, and the pump cover and the pump body are assembled to complete the assembly of the piezoelectric pump.
2. A magnetic spring piezo stack resonant pump according to claim 1, characterized in that the valve seat (11) is stepped shaft shaped and designed with a valve arm port (11-1).
3. A magnetic spring piezoelectric stack resonance pump according to claim 1, wherein the magnets (4) are respectively disposed on the end face of the stack and the end face of the vibration-transmitting rod, and the polarities of the opposite faces of the magnets are the same.
4. A magnetic spring piezoelectric stack resonance pump according to claim 1, wherein the vibration transfer rod (6) diameter is smaller than the rod bore diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416835.7A CN113565742A (en) | 2020-12-07 | 2020-12-07 | Magnetic spring piezoelectric stack resonance pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416835.7A CN113565742A (en) | 2020-12-07 | 2020-12-07 | Magnetic spring piezoelectric stack resonance pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113565742A true CN113565742A (en) | 2021-10-29 |
Family
ID=78158850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011416835.7A Pending CN113565742A (en) | 2020-12-07 | 2020-12-07 | Magnetic spring piezoelectric stack resonance pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113565742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123946A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762908A (en) * | 2014-01-08 | 2014-04-30 | 上海大学 | Method for realizing resonance in energy collector |
| CN104373327A (en) * | 2014-11-04 | 2015-02-25 | 吉林大学 | Piezoelectric pump with mixed electromagnetic force spring |
| CN204402805U (en) * | 2014-11-13 | 2015-06-17 | 浙江师范大学 | A kind of mode of resonance piezoelectricity diaphragm pump |
| CN207308326U (en) * | 2017-07-22 | 2018-05-04 | 龙南县中利再生资源开发有限公司 | A kind of quick screening and removing impurities device of rare earth waste rare earth waste |
| CN108180135A (en) * | 2018-03-09 | 2018-06-19 | 南昌工程学院 | A kind of piezoelectric stack Micropump based on two level symmetrical expression flexible hinge enlarger |
| CN109162902A (en) * | 2018-09-20 | 2019-01-08 | 长春工业大学 | A kind of floating type I-shaped valve piezoelectric pump |
| KR101978267B1 (en) * | 2018-11-28 | 2019-09-03 | 주식회사 블루콤 | A portable terminal including a vibration motor having a receiver function |
-
2020
- 2020-12-07 CN CN202011416835.7A patent/CN113565742A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762908A (en) * | 2014-01-08 | 2014-04-30 | 上海大学 | Method for realizing resonance in energy collector |
| CN104373327A (en) * | 2014-11-04 | 2015-02-25 | 吉林大学 | Piezoelectric pump with mixed electromagnetic force spring |
| CN204402805U (en) * | 2014-11-13 | 2015-06-17 | 浙江师范大学 | A kind of mode of resonance piezoelectricity diaphragm pump |
| CN207308326U (en) * | 2017-07-22 | 2018-05-04 | 龙南县中利再生资源开发有限公司 | A kind of quick screening and removing impurities device of rare earth waste rare earth waste |
| CN108180135A (en) * | 2018-03-09 | 2018-06-19 | 南昌工程学院 | A kind of piezoelectric stack Micropump based on two level symmetrical expression flexible hinge enlarger |
| CN109162902A (en) * | 2018-09-20 | 2019-01-08 | 长春工业大学 | A kind of floating type I-shaped valve piezoelectric pump |
| KR101978267B1 (en) * | 2018-11-28 | 2019-09-03 | 주식회사 블루콤 | A portable terminal including a vibration motor having a receiver function |
Non-Patent Citations (1)
| Title |
|---|
| 金艳: "理论力学", 30 September 2018, pages: 360 - 363 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123946A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
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